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-rw-r--r--db/btree/bt_utils.c260
1 files changed, 0 insertions, 260 deletions
diff --git a/db/btree/bt_utils.c b/db/btree/bt_utils.c
deleted file mode 100644
index 1416c7862d..0000000000
--- a/db/btree/bt_utils.c
+++ /dev/null
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-/*-
- * Copyright (c) 1990, 1993, 1994
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Mike Olson.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)bt_utils.c	8.8 (Berkeley) 7/20/94";
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/param.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <db.h>
-#include "btree.h"
-
-/*
- * __bt_ret --
- *	Build return key/data pair.
- *
- * Parameters:
- *	t:	tree
- *	e:	key/data pair to be returned
- *	key:	user's key structure (NULL if not to be filled in)
- *	rkey:	memory area to hold key
- *	data:	user's data structure (NULL if not to be filled in)
- *	rdata:	memory area to hold data
- *       copy:	always copy the key/data item
- *
- * Returns:
- *	RET_SUCCESS, RET_ERROR.
- */
-int
-__bt_ret(t, e, key, rkey, data, rdata, copy)
-	BTREE *t;
-	EPG *e;
-	DBT *key, *rkey, *data, *rdata;
-	int copy;
-{
-	BLEAF *bl;
-	void *p;
-
-	bl = GETBLEAF(e->page, e->index);
-
-	/*
-	 * We must copy big keys/data to make them contiguous.  Otherwise,
-	 * leave the page pinned and don't copy unless the user specified
-	 * concurrent access.
-	 */
-	if (key == NULL)
-		goto dataonly;
-
-	if (bl->flags & P_BIGKEY) {
-		if (__ovfl_get(t, bl->bytes,
-		    &key->size, &rkey->data, &rkey->size))
-			return (RET_ERROR);
-		key->data = rkey->data;
-	} else if (copy || F_ISSET(t, B_DB_LOCK)) {
-		if (bl->ksize > rkey->size) {
-			p = (void *)(rkey->data == NULL ?
-			    malloc(bl->ksize) : realloc(rkey->data, bl->ksize));
-			if (p == NULL)
-				return (RET_ERROR);
-			rkey->data = p;
-			rkey->size = bl->ksize;
-		}
-		memmove(rkey->data, bl->bytes, bl->ksize);
-		key->size = bl->ksize;
-		key->data = rkey->data;
-	} else {
-		key->size = bl->ksize;
-		key->data = bl->bytes;
-	}
-
-dataonly:
-	if (data == NULL)
-		return (RET_SUCCESS);
-
-	if (bl->flags & P_BIGDATA) {
-		if (__ovfl_get(t, bl->bytes + bl->ksize,
-		    &data->size, &rdata->data, &rdata->size))
-			return (RET_ERROR);
-		data->data = rdata->data;
-	} else if (copy || F_ISSET(t, B_DB_LOCK)) {
-		/* Use +1 in case the first record retrieved is 0 length. */
-		if (bl->dsize + 1 > rdata->size) {
-			p = (void *)(rdata->data == NULL ?
-			    malloc(bl->dsize + 1) :
-			    realloc(rdata->data, bl->dsize + 1));
-			if (p == NULL)
-				return (RET_ERROR);
-			rdata->data = p;
-			rdata->size = bl->dsize + 1;
-		}
-		memmove(rdata->data, bl->bytes + bl->ksize, bl->dsize);
-		data->size = bl->dsize;
-		data->data = rdata->data;
-	} else {
-		data->size = bl->dsize;
-		data->data = bl->bytes + bl->ksize;
-	}
-
-	return (RET_SUCCESS);
-}
-
-/*
- * __BT_CMP -- Compare a key to a given record.
- *
- * Parameters:
- *	t:	tree
- *	k1:	DBT pointer of first arg to comparison
- *	e:	pointer to EPG for comparison
- *
- * Returns:
- *	< 0 if k1 is < record
- *	= 0 if k1 is = record
- *	> 0 if k1 is > record
- */
-int
-__bt_cmp(t, k1, e)
-	BTREE *t;
-	const DBT *k1;
-	EPG *e;
-{
-	BINTERNAL *bi;
-	BLEAF *bl;
-	DBT k2;
-	PAGE *h;
-	void *bigkey;
-
-	/*
-	 * The left-most key on internal pages, at any level of the tree, is
-	 * guaranteed by the following code to be less than any user key.
-	 * This saves us from having to update the leftmost key on an internal
-	 * page when the user inserts a new key in the tree smaller than
-	 * anything we've yet seen.
-	 */
-	h = e->page;
-	if (e->index == 0 && h->prevpg == P_INVALID && !(h->flags & P_BLEAF))
-		return (1);
-
-	bigkey = NULL;
-	if (h->flags & P_BLEAF) {
-		bl = GETBLEAF(h, e->index);
-		if (bl->flags & P_BIGKEY)
-			bigkey = bl->bytes;
-		else {
-			k2.data = bl->bytes;
-			k2.size = bl->ksize;
-		}
-	} else {
-		bi = GETBINTERNAL(h, e->index);
-		if (bi->flags & P_BIGKEY)
-			bigkey = bi->bytes;
-		else {
-			k2.data = bi->bytes;
-			k2.size = bi->ksize;
-		}
-	}
-
-	if (bigkey) {
-		if (__ovfl_get(t, bigkey,
-		    &k2.size, &t->bt_rdata.data, &t->bt_rdata.size))
-			return (RET_ERROR);
-		k2.data = t->bt_rdata.data;
-	}
-	return ((*t->bt_cmp)(k1, &k2));
-}
-
-/*
- * __BT_DEFCMP -- Default comparison routine.
- *
- * Parameters:
- *	a:	DBT #1
- *	b: 	DBT #2
- *
- * Returns:
- *	< 0 if a is < b
- *	= 0 if a is = b
- *	> 0 if a is > b
- */
-int
-__bt_defcmp(a, b)
-	const DBT *a, *b;
-{
-	register size_t len;
-	register u_char *p1, *p2;
-
-	/*
-	 * XXX
-	 * If a size_t doesn't fit in an int, this routine can lose.
-	 * What we need is a integral type which is guaranteed to be
-	 * larger than a size_t, and there is no such thing.
-	 */
-	len = MIN(a->size, b->size);
-	for (p1 = a->data, p2 = b->data; len--; ++p1, ++p2)
-		if (*p1 != *p2)
-			return ((int)*p1 - (int)*p2);
-	return ((int)a->size - (int)b->size);
-}
-
-/*
- * __BT_DEFPFX -- Default prefix routine.
- *
- * Parameters:
- *	a:	DBT #1
- *	b: 	DBT #2
- *
- * Returns:
- *	Number of bytes needed to distinguish b from a.
- */
-size_t
-__bt_defpfx(a, b)
-	const DBT *a, *b;
-{
-	register u_char *p1, *p2;
-	register size_t cnt, len;
-
-	cnt = 1;
-	len = MIN(a->size, b->size);
-	for (p1 = a->data, p2 = b->data; len--; ++p1, ++p2, ++cnt)
-		if (*p1 != *p2)
-			return (cnt);
-
-	/* a->size must be <= b->size, or they wouldn't be in this order. */
-	return (a->size < b->size ? a->size + 1 : a->size);
-}
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